21142552

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{883}}^1$

素因数の和:1003

約数の個数: 32

約数和(自身を含む): 41212080

約数和(自身を除く): 20069528

約数列:

[1, 2, 4, 8, 41, 73, 82, 146, 164, 292, 328, 584, 883, 1766, 2993, 3532, 5986, 7064, 11972, 23944, 36203, 64459, 72406, 128918, 144812, 257836, 289624, 515672, 2642819, 5285638, 10571276, 21142552]

約数ペア:

[(1, 21142552), (2, 10571276), (4, 5285638), (8, 2642819), (41, 515672), (73, 289624), (82, 257836), (146, 144812), (164, 128918), (292, 72406), (328, 64459), (584, 36203), (883, 23944), (1766, 11972), (2993, 7064), (3532, 5986)]